28252000 has 96 divisors (see below), whose sum is σ = 79410240. Its totient is φ = 9676800.

The previous prime is 28251961. The next prime is 28252009. The reversal of 28252000 is 25282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27496 + ... + 28504.

It is an arithmetic number, because the mean of its divisors is an integer number (827190).

Almost surely, 2^28252000 is an apocalyptic number.

28252000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39705120).

28252000 is an abundant number, since it is smaller than the sum of its proper divisors (51158240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28252000 is a wasteful number, since it uses less digits than its factorization.

28252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 28252000 is about 5315.2610472111. The cubic root of 28252000 is about 304.5671545323.

Adding to 28252000 its reverse (25282), we get a palindrome (28277282).

The spelling of 28252000 in words is "twenty-eight million, two hundred fifty-two thousand".